dillon



No. 608,549. n Patented Aug. 2, |393.

.- P`. DILLUN.

PAPER GUTTER.

(Applcatinn led June 9, 1897.) (no nodal.) 3 sheets-sheet l Illu-RH lllllll 4:

I H I I O 0 nml lllllllll'lil i ,im xx No.'608,549. Patented Aug. 2, |898. P. DILLDN.

` PAPER GUTTER.

(Application led June' 9, 1897.) No Model.) 3 sheets-sheet 2.

Patented Aug. 2, |898. P. DILLON. PAPER cuTTEn. (Application led June 9, 1897.)

3 vSmm-smet 3.

(No Model.)

UNITED STATES PATENT FFICE.

PETER DILLON, OF LAWRENCE, MASSACHUSETTS, ASSIGNOR OF ONE-HALF Y TO HENRY C. KING, OF SA-MEYPLACE.

PAPER-CUTTER.

SPECIFICATION frming part of Letters Patent No. 608, 549, dated August 2, 1898. Application filed .Tune 189'?.l Serial No. 639,967. (No model.) d

To all whowb t may concern.' Y

Be it known that I, PETER DILLON, ofLawrence, county of Essex, State of Massachu-V setts, have invented an Improvement in yPaper-Cutters, of which the following description, in connection with the `accompanying' drawings, is a specification, like letters on the drawings representing like parts. f

lo paper-cutters, having for its object the provision of means to accurately regulate the length of sheets cut, or, in other words, to regulate with absolute deiiniteness the frequency with which the cutter operates, and

r 5 also to vary the rate f feed of the paper, a further object of my invention being to greatly increase the range of the machine above that ordinarily possible in paper-cutters.

2o VIt is ordinarily the custom in paper-cutting to feed a number of sheets or Webs of paperV simultaneously, ten or more superimposed sheets being often fed through the cutter, and

` therefore it becomes highly desirable that 2 5 there should be as little waste as possible, for the reason that each time a false cutis made or a sheet is cut of the Wrong length not only is one sheet spoiled, but the ten or more sheets which are being fed together are all spoiled. As at present constructed, however, the means for ascertaining the precise adjustment of the machine necessary is crude and imperfect, depending largely upon trial and experiment. Accordingly I have devised a perfected mechanism which not only prevents any accidental slip or uncertainty of movement of the parts, but accurately indicates the precise adjustment necessary for a given cut; also, in the different kinds of speed-changers at present found in papercutters there is always more or less uncer-k tainty of movement, especially when a number of thicknesses of paper are being cut together, more or less slip of the parts being produced, such slip, of course, destroying the accuracy of relative movement which must exist with absolute uniformity between the feeding of the paper and the cutting thereof. My invention aims at removing all the dif- 5o iiculties above alluded to. Various other details'of-improvement and advantages thereof will be more fully pointedlout in the course of thefollowing description, reference being had to theaccompanying drawings, forming 4a part of this specification, and the invention 5 5 will be Ihereinafter,defined in the claims at 'the end of the specification.

In the drawings, Figure V1 is a rear elevation iof the preferredembodiment of my improved My present invention is an improvement in f paper cutter,N showing clearly' the speed- 6o @hangin g and feed-regulating improvements forming a leading part of my. present invention, looking toward the left,-Fig. 2. Fig. 2

is an end elevation thereof. Fig. 3 is a rear elevation of the speed-changers for the cutting-blades, showing also in broken detail my improved gage. Fig. 4 is a vertical crosssection taken on the line 4 4, Fig. 3. Fig. 5

is a vertical cross-section taken on line 5 5, Fig. l. o

Mounted in suitable end standards A A and cross-braces and framework B are the usual feed-rolls C, cutter-cylinder D, provided with one or more cutting-blades d, cooperating with' a xed blade d', and gears c d2, all as 75 usually found in paper cutters. Suitably journaled in the frame is a shaft E, on which is mounted a cone-pulley E', cooperating with an oppositely-placed cone-pulley E2, carried by a shaft E3.

Various kinds of speed-changers have been .proposed and used for paper-cutters; but so far as I am aware no mechanism has been provided which would at the same time permit of delicate and accurate adjustment and 8 5 also be certain in operation, the best of them being very liable to slip, and thereby ruin one or more cuts of the paper.

Accordingly I have provided the cone-pulleys, as above described, on which a belt E4 9o is mounted in usual manner, and have arranged a combined belt shifter and tightener E5, (shown in detail in Figs. 3 and 4,) comprising a lever pivotally mounted at its middle portion on a threaded shifting rod e and carrying at its upper end a friction-roll e', between projecting ears e2, which embrace the belt between them, as clearly `seen in Figs. 2 and 4, and a rigid laterally-projecting rod e3 at its lowerend, on which is adjustably loo mounted a tension weight or-ldevice' e4, so that the pressure of the lever E5 against the belt may be definitely regulated to correspond to the weight of paper being fed through the machine simply by adjusting the tension thereof by moving the weight e1 one way or the other on the rod e3.

By reason of the mechanism just described the belt is never permitted to slaeken, but is always maintained uniformly under the same frictional resistance on its pulleys.

The pulleys E' IP are those employed for regulating the speed of the rotation of the cutter D, being geared therewith through the train of gears shown in Fig. 2 at e5 e"7 e7 es, the latter gear meshing with the gearwheel di.

In the simplest form of machine the shaft E will be the driving-shaft of the machine, having fast and loose pulleys Ef ET at one end thereof, as indicated in dotted lines, Fig. l, it being understood that in machines of this class as commonly constructed the feeding of the paper by the roller C is uniform and unchanged no matter what grade of paper or how many thicknesses thereof are being fed, it being the rule in such machines to change the speed of the cutter only, the same amount of paper always passing thereunder in a given time.

However, it is frequently desirable to be able to change the rate of feed of the paper. For instance, in the ease of light paper and few thicknesses thereof it is perfectly practical to eut it more rapidly than in the case of heavy weight and lnany thicknesses, and accordingly I have herein shown the drivingshaft of the machine at F with fast and loose pulleys F iw, the shaft F having a conepulley Fi connected by means of a belt l!" to a cone-pulley FS, fast on the shaft E, a belt shifter and tightener G being provided to keep the parts from slipping and to shift the belt, being operated by a screw-rod f/ and hand-wheel gf. (See Figs. l and lf preferred, the belt tightener and shifter E may be substituted for the one marked G.

ly reason of this construction it is evident that simply by turning the hand-wheel y one way or the other the speed of the shaft lt, and therefore of the feeding-roll C through the gears c and c", maybe varied as desired, and this may be accomplished either with or without increasing the speed of the cutting-cylinder l) simply by shifting the hand-wheel eX of the main. shifting rod c at the same time that the belt F'l is shifted.

Referring to Fig. 8, it will be seen that the rod c is provided with one set of threads to shift the belt and with another set of threads (aw of tiner pitch, on which is mounted the indicator em, shown in side elevation in Fig. 4, where it will be seen that it rests on an inelined plate om, graduated as a gage, (see Fig. 3,) the indicator projecting below the rod c and having a socket fr, containing a spring e, bearing against the beam l, so as to hold the indicator in free sliding engagement with the plate Ni". 'lhis construction permits the operator to determine with the utmost accuracy preciselyhow far the beltm ustbe shifted in order to cut a given length of paper.

A further important feature of my invention remains to be described, and consists in providing mechanism whereby the range of relative rates of feed and eut may be greatly increased in the same machine without the necessity of dismembering the machine in any way or requiring any particular skill in order to adjust the parts. The mechanism for this purpose comprises a quadrant or shifting plate G, pivoted at gi and capable of being swung up or down to a limited extent by the handle gw and cam-elam p g2, operating,r in a slot g3, (see Fig. 2,) to sccurely clamp the angle bracket or quadrant G firmly against the frame of the machine, so as to prevent any vibration or looseness thereof, and a spring-pin g4, serving to engage a series of holes y, properly fixes the bracket G in its adjustment. lly this means the gear-pinion e" maybe raised or lowered to mesh with either one of a series of differentsized gears el" c", (see Fig. 1,) these gears being splined on the shaft c and freely movable longitiulinally thereof, said gears having side flanges (21S, as clearly shown in Fig. l, to prevent their getting out of mesh with the gear e when the machine is running.

The provision just described permits a eertain range of adjustment corresponding to the length of the cone-pulleys c' e for the gear c, for instance, and then the shaft being shifted back t0 its Original position and the gear el" being brought into mesh with the gear c a further adjustment of the cutting mechanism is rendered possible similar in extent to that before accomplished, but in addition thereto, and so likewise the belt being again shifted back to its original position and the gear e1T being brought into mesh with the gear c a further increase of adjustment is accomplished, and all this is done without any inconvenience and delay.

I have herein described the preferred embodiments of my invention; but I am aware that many and various changes may be resorted to both in the details of construction and in the combinations thereof without in any way departing from the spirit and scope of my invention, and therefore I do not intend to limit myself to the precise construction herein shown and described.

llaving described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a paper-cutter, the combination with feeding mechanism for the paper, cutting mechanism,and a main driving-shaft having unvarying speed, of means permanently mounted and journaled in the organized. machine to vary at will the speed of said cutting mechanism, and of said feeding mechanism independently of each other, substantially as described.

52. paper-cutter, having in combination,

ICO

IIO

ITS

feeding mechanism adapted .to receive and feed a plurality of superimposed thicknesses of paper of different weights or grades, severing devices to which said thicknesses of paper are simultaneously fed to be cut, and operating mechanism, including an intermediate cone-and-belt device, for driving said severing devices and feeding mechanism with relative speeds required for producing the uniform lengths of sheets desired, said operating mechanism including means to accurately change the frictional engagement of said belt as, and according to, the different resistances offered by the dierentthicknesses and different weights or grades of paper being cut, and means to vary the relative speed of the severing devices for cutting sheets of diiferent lengths, substantially as described.

3. The combination in a paper-cutter,with the feed-rolls for feeding the paper, and severing devices for cutting the paper of a coneand-belt speed-changer geared between and with said feed-rolls and severing devices, and means to maintain friction in said lcone-andbelt device varying in proportion to the varying loads, a second cone and -belt speedchanger mounted'adjacent and driving said first-mentioned cone-and-belt mechanism, whereby the speed of said severing devices and of said feed-rolls may be varied at will either togetheror independently of each other as desired, substantially as described.

4. -A paper-cutter having, in combination, paper-severing mechanism, feed-rolls to feed the paper thereto, and a pair of coperating cone-pulleys between said feeding and severing mechanisms and driving the latter, a belt passed about said cone-pulleys, a pivoted lever having a friction-roll at one end between two ears, said ears embracing said belt, and said rollresting against the latter, and at its other end having a laterally-projecting rod on which is mounted a weight, and means to adjust said weight on said rod, whereby the tension of 'said belt may be varied accordingv to the paper being fed and cutv by the machine, substantially as described. y

5. The combination, in a paper-cutter,with the paper-severing devices, feed-rolls to deliver the paper thereto, and driving mechanism for said parts, said driving mechanism including a power-shaft and gear driven thereby, of a shifting plate permanently mounted on the frame of the machine and carrying a train of `gear-wheels, said train meshing -at one end with the said driven gear, said train and said driven gear being one permanently provided with a plurality of different-sized gear-wheels, and the other being adapted to mesh with any one of said dierent-sized gear-wheels, and one being freely movable laterally relatively to the other, said train meshing at its opposite end with the mechanism driven thereby for operating said paper-Severin g devices, and means to move said plate concentrically with the gear-wheel at said last-mentioned end of said train, in order to operate. the train through any one of said different-sized gear-wheels, substantially as described.

G. The combination in a paper-cutter, with the feeding mechanism for feeding the paper, and severing devices forcutting the paper,

vof operating mechanism geared between and with said feeding mechanism and severing devices, said operatingmechanism including a main driving-shaft, a cone-and-belt speedmanently provided with a plurality of differ- .ent-sized gear-wheels, and the other being adapted to mesh with any one of said different-sized gear-wheels and one being freely movable laterally relatively to the other, said` train meshing at its opposite end with the mechanism driven thereby, and means for moving said plate concentrically with the gear-Wheel at said last-mentioned end of said train, substantially as described. A

7. The combination, in a paper-cutter, with the paper-severing devices, feed-rolls to deliver the paper thereto, and driving mechanism for said parts, said driving mechanism including a power-shaft and gear driven IOO thereby, of a shifting plate mounted on the frame of the machine and carrying a train Of gear-Wheels, said train meshing at one end with the said driven gear, said ytrain and said driven gear being one provided with a plurality of different-sized gear-wheels, and

the other being adapted to mesh with any one of said different-sized gear-wheels, and one being freely movable laterally relatively to the other, and one having side flanges 618 to prevent accidental shifting out of mesh, said train meshing at its opposite end with the mechanism driven thereby, and means to move said plate concentrically with thev gear-wheel at said last-mentioned end of said train, in order to operate the train through any one of said different-sized gear-wheels, substantially as described. y

S. The combination, in a paper-cutter, with feed-rollsto feed the paper, and severing devices to cut the paper, of a frictional speedchanger capable of a long range of delicate variations, means to vary said friction in proportion to the varying resistance of the paper fed, said friction being maintained always suliicient to prevent slip, said speedchanger comprising a pair of cooperating cone-pulleys, a belt passed about them, a combined belt shifter and tightener in engagement with said belt, an adjustable tension device thereon to vary the frictional engagement thereof with the belt, a threaded shift- IIO IZO

is mounted, said rod extending in the organ- 1o compass of the machine for and in eonneetion with a long range of movement of said shifter and tightener, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of I5 two subscribing witnesses.

PETER DILLON. Witnesses:

GEO. 1I. MAXWELL, FREDERICK L. EMEnY. 

